PLATE 2 

 Anthracoporella, Atractyliopsis 



Figs, i, 2. Anthracoporella spectabilis Pia, thin-section x 12, and portion enlarged to show 

 wall-detail, x 24. Permian ; derived cobble in Triassic conglomerate ; Jebel Busyah, Oman, 

 Arabia. V. 52036. 



Figs. 3-5. Atractyliopsis darariensis sp. nov. Thin-sections ; 3. Paratype, oblique- 

 vertical, X28 V. 52015 ; 4. Paratype, vertical, incomplete example, X40 V. 52037 ; 5. Holo- 

 type, vertical, long gently-curved example, x 20 V. 52037. Upper Permian, Darari Formation; 

 Ora, Mosul Liwa, Iraq. 



